KNF21100-W3

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

EMI/RFI stands for Electromagnetic Interference and Radio Frequency Interference, which are the unintentional signals generated by electromagnetic or radio frequency sources that interfere with the performance of electronic systems. EMI/RFI filters are used to reduce these unwanted signals and preserve the original signal that is required for a proper functioning device. The KNF21100-W3 is an EMI/RFI filter that is used in various applications. This paper will discuss the application field and working principle of the KNF21100-W3.

The KNF21100-W3 is a two stage filter designed for use in applications requiring extreme levels of EMI/RFI protection. The filter is a combination of both LC and RC networks, utilizing both RL and RC filters and switching systems to provide an effective level of interference protection. The filter provides a 3 dB rejection level at 400-500 Hz with an insertion loss of 0.4 dB at 400 Hz and 1.5 dB at 500 Hz. The filter is designed to be used with systems operating within a frequency range of 400-1000 Hz.

The KNF21100-W3 is primarily used in automotive, medical, telecom, and industrial applications that require a high degree of EMI/RFI protection. The filter is designed for applications such as cellular phones, communications systems, surveillance systems, industrial control systems, and other consumer electronics devices. The KNF21100-W3 is also used to protect sensitive electronic components and systems from EMI/RFI noise, such as those found in automotive electronics, medical devices, and other high noise environments. The filter is also an ideal choice for applications requiring a low insertion loss, such as those found in wireless networks, cellular communications systems, and other wireless technologies.

In order to properly function, the filter must be connected between the signal source and the load. The filter is then used to attenuate any unwanted signals that may be present before or after the load. The filter can be configured to reduce the level of EMI/RFI signals at harmonics of frequencies up to 1 MHz. By reducing the level of interference present, the filter can improve system performance and reliability.

The working principle of the KNF21100-W3 is based on two main stages of filtering, an LC and an RC network. The LC stage is designed to reduce noise at harmonics of frequencies above 500 Hz. The LC stage is followed by the RC network, which is designed to reduce EMI/RFI noise at frequencies below 400 Hz. The two stages are then followed by a switching system, which helps to reduce the level of noise at frequencies below 200 Hz. The filter also utilizes a combination of inductors and capacitors to provide an overall low insertion loss coupling, and an RF choke to limit RF interference.

In conclusion, the KNF21100-W3 is an EMI/RFI filter that is used in a variety of automotive, medical, telecom, and industrial applications. It is a two-stage filter utilizing both LC and RC networks, which provide a high degree of interference protection. The filter can be configured to reduce noise at harmonics of frequencies up to 1 MHz, and improve system performance and reliability. As such, the KNF21100-W3 is an ideal choice for applications requiring a high level of EMI/RFI protection.

The specific data is subject to PDF, and the above content is for reference